This particular bug does NOT occur anymore with Hardy Alpha-2 on Santa Rosa (Thinkpad T61 965GM).
However when visual effects are enabled with 'extra', other bugs occur such as the window bars of apps disappearing. Reference: https://bugs.launchpad.net/ubuntu/+bug/178832
Xiaoyang, I would suggest closing this particular bug unless you've found different results than myself.
This particular bug does NOT occur anymore with Hardy Alpha-2 on Santa Rosa (Thinkpad T61 965GM).
However when visual effects are enabled with 'extra', other bugs occur such as the window bars of apps disappearing. /bugs.launchpad .net/ubuntu/ +bug/178832
Reference: https:/
Xiaoyang, I would suggest closing this particular bug unless you've found different results than myself.